LANDSCAPE STRUCTURES AND FRACTAL ANALYSES OF GUANSI RIVER WATERSHED
By application of forest distribution map and remote sensing image in 2005 (IKONOS), land usage database was established. Each landscape elements of Guansi river watershed were analyzed by fractal theory. The results showed; 0the cultivated land and forestry land area accounted for absolute advantage, which were the matrix of landscape in this area. The land usage type changed greatly, while the area of forest land, roads, the waters expanded unceasingly. (2)The diversity index of construction land, water and land was the largest, and the advantage degree was also more obvious, while the diversity index and advantage degree of each forest land were also smaller. (3) The fractal dimension of forest land and land was greater than other landscape types, while the stability index was smaller. That illustrated the two landscape type distribution was more complicated and irregular, stability was poorer. The fractal dimension of building lands and waters was low, close to 1, which showed the two types of distribution on a smaller scale, plaques more rules. According to the dynamic change of fractal dimension, besides the road and water area, other landscape types were increased, which showed that human beings to this several types of utilization degree more complicated.
Guansi river watershed"3S" technologylandscape structurefractal
国家科技期刊平台
NSTL
万方数据
维普
